Senior Integration Engineer MWDN $$$$
Madfish
Ukraine
We’re looking for a Senior Engineer who thrives on unfamiliar problems — someone who can land in a customer’s environment, reverse-engineer poorly-documented vendor APIs, and ship a working integration end-to-end, solo.
What makes you a great fit:
- 5+ years of professional software development experience, including 3+ years of hands-on experience in Python.
- Proven track record in designing and building integrations against third-party REST APIs.
- Comfortable working in unfamiliar codebases and picking up new stacks as engagements demand.
- Upper-intermediate written and spoken English.
- Self-managed in an async remote setting — strong ownership, communication, and time management.
- Curiosity and dive-deep mentality — comfortable when documentation is incomplete or absent.
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AI-as-tool fluency — productive use of Claude code, Copilot, Cursor, or similar for research and implementation.
Will be a plus:
- Prior customer-facing engineering experience (joining technical calls, gathering requirements).
- Familiarity with security products (SIEM, EDR, vulnerability management, threat intel, firewalls, etc.).
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Experience working in or alongside a SOC.
Why work with us?
- People-first management with minimal bureaucracy
- A friendly company culture, proven by employees who choose to return
- Flexible working hours
- 29 days of PTO (18 working days per year, plus all national holidays)
- 10 paid recovery days
- Full financial and legal support for independent contractors
- Free English classes, with native speakers or Ukrainian teachers
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Dedicated HR support
Your day-to-day in this position:
- Design and build bespoke integrations between our products and customer-specific security stacks — primarily in Python, occasionally in whichever stack the engagement demands.
- Tackle the hardest integration problems: the non-conventional, “out-of-the-books” engagements that standard product connectors can’t cover.
- Own each engagement end-to-end — discovery and technical scoping through implementation, testing, and handover.
- Join customer technical calls alongside PM/CSM to sharpen requirements; drive written follow-up between sessions.
- Reverse-engineer poorly-documented vendor APIs and build robust integrations against them.
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Capture learnings from each engagement and feed them back to the product and integration teams so the next engagement is easier.
What is your new project?
- Domain: Computer and network security
- Location: Israel
- Company size: 51-200 employees
- Founded in: 2009
Our next steps:
✅ Intro call with a Recruiter — ✅ Tech livecoding interview — ✅ Tech theoretical + system design interview — ✅ Managerial interview — ✅ HR client interview — ✅ Reference check — ✅ Offer